(Maryam) 19 : 35
مَا كَانَ لِلَّهِ أَنْ يَتَّخِذَ مِنْ وَلَدٍ ۖ سُبْحَانَهُ ۚ إِذَا قَضَىٰ أَمْرًا فَإِنَّمَا يَقُولُ لَهُ كُنْ فَيَكُونُ
It is not suitable for Lord Allah to have a son; Glory is to Him! When He intends a thing, He says to it: “Be”, then it is.
See explanation 6: 101-103; 9: 30; 16: 40 and 17: 1.